CQ Worldwide DX Contest, RTTY

Worldwide RTTY contest working CQ zones, DXCC countries and, uniquely among the CQ WW family, W/VE states and provinces as a third multiplier.

Rules at cqwwrtty.comThe rules are the sponsor's. This page holds the dates and the facts.

When it runs

Last full weekend of September

0000Z Saturday → 2359Z Sunday

Times are UTC, as the sponsor states them.

Next runnings

0000Z Sat 25 Sep → 2359Z Sun 26 Sep · 47h 59m2027
in 358 days
Logs due 2359Z Tue 28 Sep
0000Z Sat 23 Sep → 2359Z Sun 24 Sep · 47h 59m2028
in 722 days
Logs due 2359Z Tue 26 Sep
0000Z Sat 29 Sep → 2359Z Sun 30 Sep · 47h 59m2029
in 1093 days
Logs due 2359Z Tue 2 Oct
0000Z Sat 28 Sep → 2359Z Sun 29 Sep · 47h 59m2030
in 1457 days
Logs due 2359Z Tue 1 Oct

Operating

Modes: RTTY
Bands: 80m40m20m15m10m
Five bands only: 3.5, 7, 14, 21 and 28 MHz
Exchange: RST report plus CQ zone number; continental USA and Canada also send state or province
Power categories: High Power 1500 WLow Power 100 WQRP 5 W
Logs: Cabrillo · due 2 days after the end · cqwwrtty.com
Who can enter: Anyone, anywhere.
CQ WW RTTY rules I: 'For amateurs around the world to contact as many other amateurs in as many CQ zones, countries and W/VE QTHs as possible.'

Where this comes from

Checked against the sponsor: Yes. The rule on this page was read off CQ Magazine's own published rules. Link last confirmed 2026-08-16.
What the source says: cqwwrtty.com states the period ('Starts 00:00:00 UTC Saturday -- Ends 23:59:59 UTC Sunday') and the year's dates ('September 26-27') but no recurrence rule. Last full weekend of September reproduces all eleven CQ-published runnings 2016-2026, each read from that year's archived rules PDF on cqwwrtty.com, including 2018 (Sep 29-30, a fifth Saturday). Verified 2026-08-16.

Something wrong? How to report it — a link to the sponsor's own page is all it takes.

Take it with you

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Add to Google Calendar puts the next running in as a single event. It is one event, not a subscription — come back for the one after it, or use the feed below.

Subscribe (iCal) carries this contest's runnings for the next twelve months as UTC instants and keeps them current. Apple Calendar, Outlook and Thunderbird take this address directly. Its identifiers are stable across deploys, so re-subscribing does not duplicate anything: https://contestclock.com/api/ics?id=cq-ww-rtty

Google has no working one-click subscribe. Paste that address into Settings → Add calendar → From URL. Google then polls it on its own schedule, often 8–24 hours, and that cannot be forced — so use Add to Google Calendar above if you want the next running in your calendar now.